Edge spring arrangement

ABSTRACT

A spring edge arrangement for a seat assembly where the seat assembly includes a sinuous spring band. A cantilever arm member has an attachment section which anchors at its inner end onto at least two linear wire segments of the band and a cantilever section which extends away from the attachment section to terminate in a border wire-retaining mouth plumbed over the front rail of the seat assembly.

United States Patent [56] References Cited UNITED STATES PATENTS1,951,674 3/1934 Saunders 5/3537 X 2,117,748 5/1938 Stewart 5/3533 X2,356,417 8/1944 Mayer 267/102 2,663,361 12/1953 Diamond 287/l89.353,091,451 5/1963 Reed 267/107 3,210,064 10/1965 Crosby 267/103 3,425,6802/1969 Garrision 267/102 Primary ExaminerArthur L. La PointAttorneyHume, Clement, Hume & Lee

ABSTRACT: A spring edge arrangement for a seat assembly where the seatassembly includes a sinuous spring band. A cantilever arm member has anattachment section which anchors at its inner end onto at least twolinear wire segments of the band and a cantilever section which extendsaway from the attachment section to terminate in a border wire-retainingmouth plumbed over the front rail of the seat assembly.

PATENTED JUL20 l9?! 3, 5 83,1979

' SHEET 1 BF 2 PATENTEUJULZOIHYI 3.593 979 SHEET 2 OF [Ma M A K/wy EDGESPRING ARRANGEMENT This application is a continuation-in-part of thecopending application of Lawton H. Crosby, Ser. No. 697,868, filed Jan.15, 1968, and now abandoned.

BACKGROUND OF THE INVENTION This invention relates in general to springsfor furniture or the like, and more particularly to sinuous wiresprings. It deals specifically with an edge spring arrangement whichprovides edge resilience and comfort in sinuous spring seat assemblies.

The advent of sinuous springing in the furniture business permitted themanufacturer to provide good seating at minimum cost. The quality of thesinuous spring seat was subsequently heightened with the appearance ofthe levered springing arrangement of Crosby et al. disclosed in US. Pat.No. 3,210,064.

Sinuous spring seats are normally set up as either hard edge" or springedge" seats. Spring edge seats are, in general, well known: An excellentfront spring edge is disclosed in the Crosby U.S. Pat. No. 3,3l 1,366,for example.

A front spring edge has always been somewhat cumbersome to provide in asinuous spring seat assembly, however. One arrangement for providingthis front edge resilience is found in the"fold-back" type spring edgeillustrated in the aforementioned Crosbyv US. Pat. No. 3,3l L366.Another spring edge arrangement incorporates a separate sinuous springmember clipped ontothe sinuous spring band adjacent the front end of theband and diverging therefrom. Still another spring edge arrangement isembodied in a wishbone" type spring steel member which also snaps ontothe spring band adjacent the front end.

Each of the aforementioned spring edge arrangements leaves something tobe desired, however. They are all relatively expensive to employ, forexample. In the case of the foldback construction, different springsmust actually be stocked for the construction of either hard edge orsoft edge furniture. The clip-on and the wishbone constructions are eachadaptable only to a preselected type of sinuous band. In other words,they are not interchangeable from regular loop to super loop, forexample. In each construction, the attachment of the necessary borderwire in the spring edge arrangement is costly, cumbersome and timeconsuming, requiring a separate clipping operation, as is the clipmounting of the conventional cardboard backing for edge stuffingmaterial. Furthermore, only by trial and error adjustment of main springband length or the spring edge band segment length is the border wirepositioned precisely over the front rail ofthe frame.

SUMMARY OF THE INVENTION The object of the present invention is toprovide a new and greatly improved spring edge arrangement for a sinuousspring band assembly in a furniture seat or the like. The foregoing andother objects are realized in accord with the present in vention in aspring edge arrangement including a resilient cantilever arm whichreadily adapts any type sinuous spring band to luxurious,soft edgeseating at minimum cost with minimum labor. Regardless of the type ofsinuous spring band employed, whether it is regular loop, X-L loop, orsuper loop, the cantilever arm fits and cooperates with the band so thatthe border wire terminus of the arm is in vertical "plumb" with thefront edge of the furniture seat, for example. It completely obviatesall clipping operations required in other forms of spring edgearrangements. The cantilever arm is fabricated of spring steel strip orwire formed according to the invention to provide a preselected degreeof resilience and support at the cushion edge and, at the same time,obviate cushion gap.

The border wire terminus of the arm is adapted to receive and retain theborder wire without separate attachment clips. In addition, lessexpensive, relatively narrow gauge wire with a paper wrapping canreadily be employed, in fact is highly advantageously employed, withthis'invention, in contrast to the prior art arrangements.

The cantilever arm; is especially adapted to mounting cardboard backing'for edge stuffing material normally supported on spring edgearrangements. This cardboard backing is readily seated and retainedsimply and expeditiously.

The spring edge arrangement of the present invention thus provides fivemajor advantages. First, it is the only arrangement which readily fitsall spring band loop sizes. Second, it assures the border wire beingpositioned directly over the frame rail. Third, the softness-firmnessresilience ratio is readily controlled by varying cantilever arm segmentlengths and angles. Fourth, border wire clips and the clipping operationare eliminated. Fifth, stapling of cardboard stuffing support iseliminated.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, including itsconstruction and method of operation, is illustrated more or lessdiagrammatically in the drawings, in which:

FIG. I is a plan view of a portion of furniture spring assemblyincorporating a first form of the spring edge arrangement embodyingfeatures of the present invention, with parts broken away;

FIG. 2 is an enlarged side view of the spring edge arrangement seen inFIG. 1;

FIG. 3 is an enlarged side view of a spring edge arrangement broadlysimilar to that illustrated in FIGS. 1 and 2, but with the border wireterminus of the cantilever arm modified according to the invention;

FIG. 4 is an enlarged side view of the border wire terminus of thecantilever arm otherwise modified according to the invention;

FIG. 5 is an enlarged side view of the border wire terminus of thecantilever arm still otherwise modified according to the invention;

FIG. 6 is a plan view of the modification seen in FIG. 5;

FIG. 7 is an enlarged side view of a second form of spring edgearrangement embodying features of the present invention;

FIG. 8 is a further enlarged side view of a third form of spring edgearrangement embodying features of the present invention;

FIG. 9 is an enlarged plan view of the third form of spring edgearrangement illustrated in FIG. 8;.

FIG. 10 is a side sectional view ofa modification of the third form ofspring'edge arrangement illustrated in FIGS. 8 and 9;

FIG. 11 is an enlarged side view of a fourth form of spring edgearrangement, with parts removed;

FIG. 12 is a perspective view of a fifth form of spring edgearrangement; and

FIG. 13 is a perspective view of yet a sixth form of the spring edgearrangement, with parts removed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings,and particularly to FIG. I, a portion of a furniture spring seat isillustrated generally at 10. The furniture spring seat 10 comprises aseries of sinuous spring assemblies It (only one of which is shown)mounted in a frame 12. The frame 12 includes a pair of side rails 15(only one of which is shown), a front rail 16, and a back rail 17. Therails 15, I6 and 117 are fabricated of wood and joined together in aconventional manner.

Each sinuous spring band assembly 11 includes a sinuous spring band 20secured to the front rail 16 by a conventional fastening clip 21 and tothe back rail 17 by a similar conventional fastening clip 22. The band20 is modified adjacent the back rail 17 of the frame 12 to provide: asubstantially integral rear torque inducing arrangement 26 which exertsa downward torque in the band 20 adjacent the back rail 17, butdisplaced therefrom to afford translatory movement in the mannerdisclosed in the copending application of Crosby et al., Ser. No.602,448, filed Nov. 28, 1966, now US. Pat. No. 3,388,904, June 18, 1968,entitled SPRING CONSTRUC- TlON" and assigned to the same assignee as thepresent invention.

The band 20 is comprised ofa series of linear wire segments 27interconnected by an alternating series of generally semicircular wiresegments 28. In the illustrated band 20, which is known in the trade asa regalur loop sinuous band, the linear segments are spaced aboutthirteen-sixteenths inch apart from center to center. This is the mostcommonly used sinuous. Sinuous spring stock is also available and widelyused in what is known as XL" loop and super loop sinuous. The XL sinuoushas linear segments spaced about 1 H16 inches apart from center tocenter and the super loop sinuous has linear segments spaced about 1 /16inches apart from center to center. lnother words, there are one-fourthinch increments in linear segment spacing between regular, XL and superloop sinuous. I

Adjacent the front rail 16 ofthe furniture spring seat 10, the springband assembly 11 is provided with an edge spring arrangement 30embodying features of the first form of the present invention. As seenin FIGS. land 2, the edge spring arrangement 30 includes a cantileverarm member 31 mounted on the sinuous spring band according to thepresent invention. The cantilever arm member 31, in turn, mounts aborder wire 32 and cardboard backing 33 for conventional edge stuffingmaterial, all according to the invention.

The cantilever arm member 31 is fabricated of a l-inch wide strip of0.065 gauge, 1090 carbon steel, hardened to 49 Rockwell on the C scale.The steel strip is, in its tlat, unformed configuration, 8 inches long,very resilient, yet extremely strong.

The steel strip is formed into the cantilever arm member 31 byconventional forming techniques. The cantilever arm member 31 includesan attachment section 40 and a cantilever section 41 which meet at anintermediate .point 42 in the arm member 31. I

The attachment section 40 includes a series of three wire seat channels45, 46 and 47, formed upwardly into the steel strip and disposedtransversely thereof adjacent the aforementioned intermediate point 42.The channels 45-47 are formed in the attachment section at A-inchcenterline longitudinal (of the strip) spacing from each other, forreasons hereinafter discussed in detail. 7

The channels 454'7 lie generally in the same plane, extending axiallyaway from the intermediate point 42 of the cantilever arm member 31.Coextensive with the channels 45-47 and extending from the outermostchannel 47 in generally the same plane is an anchor segment 50 of theattachment section 40.

1n the edge spring arrangement 30 illustrated in FIGS. 1 and 2, forexample, where a "regular" loop sinuous spring band 20 is employed, itwill be seen that the wire seat channel 45 is seated over the fifthlinear segment 270 from the front endmost linear segment 27b of thesinuous band 20. The anchor segment 50 extends under and is anchoredbeneath the sixth linear segment 270 as pressure is applied to thecantilever section 41 of the arm member 31. The portion of theattachment section 40 between the wire seat channel 45 and the anchorsegment 50 which extends under and is anchored beneath the fixed linearsegment 27c actually extends through the band, from above it to belowit. As a result, the arm member 31 can not inadvertently movetransversely off the band 20, to either one side or the other. 7

The cantilever section 41 ofthe arm member 31 includes an inner segment55 bent upwardly from the plane of the attachment section 40 at an angleof approximately 30. The outer segment 56 of the cantilever section 41is, in turn, bent upwardly form the plane of the inner section 55 at anangle of approximately 30. Theoverall length of the cantilever section41 is divided so that approximately 40 percent of its length is made upby the inner segment 55 while 60 percent is made up by the outer segment56, for reasons hereinafter discussed.

The free end of the outer segment 56 in the cantilever section 41 isformed backwardly upon itself, as best illustrated in FIG. 2, to form aretainer snap 58. The retainer snap 58 is formed with a spacing at itsmouth 59 of slightly. less than the thickness of a border wire 32 whichis, as illustrated, forced into the snap and retained there. To assureretention of the border wire 32 in the snap 58, a tang 60 may be formedupwardly from the outer cantilever segment 56 in the mouth 59. The tang60 faces into the snap 58 and is resilient so as to prevent the wire 32from being inadvertently forced out of the snap.

The cantilever section 41 of the arm member 31 has three lips 65, 66 and67, formed upwardly from it by conventional techniques. The lips 67 areevenly spaced along the cantilever section 41 so that, in this form ofthe invention, one lip 67 lies on the outer segment 56 of the section 41and the other two lips 65, 66 lie on the inner segment 55.

Each lip 6567 has an outwardly extending flange 70 at its free end. Ina-manner hereinafter discussed in greater detail, one of the lips, lip66 in the present illustration, receives and seats the lower edge of thecardboard strip 33 employed according to the invention as a support forconventional edge stuffing material (not shown).

The cantilever arm member 31 is constructed so that its retainer snap 58can readily be positioned in plumb line relationship directly above thefront rail 16 of the furniture spring seat 10, regardless of the type ofspring band 20 which is employed, as hasbeen previously pointed out. Inthe illustration of FIGS. 1 and 2, where regular loop sinuous isemployed, the arm member 31 is seated on the spring band 20 so that theclip 58 is directly over the front rail 16 when the innermost wirechannel seat 45 is seated on the linear segment 27a of the band. lf theband were XL loop, or super loop sinuous, the arm member 31 couldreadily be positioned on the band with any selected on of the wire seatchannels 4547 seated over a selected linear segment 27 in order toposition the snap 58 directly over the front rail 16; 7

1t will now be seen that regardless of the type of sinuous spring band20 employed, and even regardless of unexpected variations in spacirigbetween linear segments 27 of the band, the cantilever arm 31 can bemounted on the band so that its snap 58 end is directly over the frontrail 16, thus assuring that the finished seat will be squared off at itsfront edge. The arm member 31 is especially suited for transitionbetween regular loop, X-L loop and super loop sinuous, since its wireseat channels 4547 are spaced one-fourth inch apart in the attachmentsection 40 of the arm member.

When the arm member 31 is correctly mounted on the band 20 according tothe invention, the border wire 32 is forced into the snap 58 through therelatively narrow mouth 59 of the clip. No separate clip attachmentmeans or attaching tools are required to mount and securely retain theborder wire 32 in the snap 58, thus simplifying and considerablylowering the cost of the assembly operation. Further from the costreduction standpoint, this snap 58 arrangement permits the use of, infact even encourages the use of, conventional paper wrapped wire ofrelatively narrow gauge, in lieu of the heavier gauge bare wire requiredwith previously known border wire attachment means. The former is muchless expensive, of course. The retention of the conventional paper woundwire is enhanced by the slight resiliency and greater frictional effectof the paper-winding on the wire. 1t also provides a completely noisefree combination.

ln final assembly of the spring edge arrangement 30 according to theinvention, the'cardboard element 33 is seated with its lower edgeresting on one of thelips 6S--67. Depending upon the desired width ofthe cardboard element 33, one of the lips 65-67 is selected. A lip isselected as the lower edge seat for the element 33 so that its upperedge extends out to and is coextensive with the border wire 32 where itrests upon the snap 58 enclosing the border wire. I

The arm member 31 has been described as having two 30 bends separatingthe inner and outer segments 55 and 56 of the cantilever section 41 fromthe attachment section 40. These specific bends introduce a selectedamount of stiffness and flexibility to the arm member 31 so that a firm,yet soft seat is achieved. 1

One other feature of the invention affects the firmness of the seatachieved with the front edge spring arrangement 30. In the illustrationof FIGS. 1 and 2, the arm member has a cantilever section 41 which isdivided in length between the inner segment 55 and the outer segment 56.Here the outer segment is 50 percent longer than the inner segment. Thisproduces a relatively firm edge. By reversing this relationship, forexample, to make the inner segment 50 percent longer than the outersegment, an edge which is slightly less firm is achieved. Thisrelationship is actually illustrated in the form of the invention seenin FIG. 7.

Referring to FIG. 3, a modified version of the first form of the springedge arrangement embodying features of the invention is illustrated at130. The spring edge arrangement 130 is identical to the spring edgearrangement 30 hereinbefore described in all respects except in theconstruction and arrangement of the snap 158 on the free outer end ofthe cantilever arm member 131. Accordingly, corresponding components ofthe arm members 131 and 31 are, except for the snap 158, identified bycorresponding reference numerals.

Referring specifically to the snap, it will be seen that it is formed bybending the free end of the outer segment 56 in the cantilever section41 backwardly upon itself, similar to the snap 58, to form an open mouth159 which is narrower than the thickness of a border wire 32. Inaddition, however, the snap 158 is, in its entirety, bent downwardly atgenerally a right angle to the plane of the outer segment 56. As aresult, when the border wire 32 is forced into the snap 158, no amountof downward pressure on the edge spring can be effective to force theborder wire out of the snap. This is an added safety feature to thespring edge arrangement, which is, in all other respects, identical tothat shown in FIGS. 1 and 2.

The cantilever section 41 of the arm member 31 includes an inner segment55 bent upwardly from the plane of the attachment section 40 at anangle-of approximately 30. The outer segment 56 of the cantileversection 41 is, in turn, bent upwardly from the plane of the innersection 55 at an angle of approximately 30. The overall length of thecantilever section 41 is divided so that approximately 40 percent of itslength is made up by the inner segment 55 while 60 percent'is made up bythe outer segment 56, for reasons hereinafter discussed.

The free end of the outer segment 56 in the cantilever section 41 isformed backwardly upon itself, as best illustrated in FIG. 2, to form aretainer snap 58. The retainer snap 58 is formed with a spacing at itsmouth 59 of slightly less than the thickness of a border wire 32 whichis, as illustrated, forced into the snap and retained there. To assureretention of the border wire 32 in the snap 58, a tang 60 may be formedupwardly from the outer cantilever segment 56 in the mouth 59. The tang60 faces into the snap 58 and is resilient so as to prevent the wire 32from being inadvertently forced out of the snap.

The cantilever section 41 of the arm member 31 has three lips 65, 66 and67, formed upwardly from it by conventional techniques. The lips 6567are evenly spaced along the cantilever section 41 so that, in this formof the invention, one lip 67 lies on the outer segment 56 of the section41 and the other two lips 65, 66 lie in the inner segment 55.

Referring to FIG. 4, another variation in border wire snap is showngenerally at 258. The snap 258 is formed similarly to the snaps 58 and158 by bending the free end of the outer segment 56 backwardly uponitself to form the open mouth 259.

Referring to I65. 5 and 6, still another variation in border wire snapis shown generally at 358. The snap 358 is formed by diecutting a tangout of the free end of the outer segment 56 and bending it downwardlyandthen upwardly to form the open mouth 359. Once again, when the borderwire 32 is forced into the snap 358, no amount of downward pressure canforce it out.

Turning to FIG. 7, a second form of the spring edge arrangement is seengenerally at 330. The spring edge arrangement 330 includes a cantileverarm member 331 broadly similar to the arm members 31 and 131hereinbefore discussed, mounted on the sinuous spring band 20 accordingto the present invention. Once again, the cantilever arm member 331mounts a border wire 32 and a cardboard backing strip 33.

The arm member 331, fabricated of steel strip, includes an attachmentsection 340 and a cantilever section 341 which meet at an intermediatepoint 342 in the arm member 331. In the attachment section 340, threewire seat channels 345, 346 and 347 are formed downwardly into the steelstrip adjacent the free end of the strip. These channels are formed ononefourth inch centerlinc spacings and lie generally in the same planeas an anchor segment 350 of the attachment section 340. The anchorsegment extends between the innermost channel 345 and the intermediatepoint 342 of the arm member 331. r

In the spring edge arrangement 330, the arm member 331 is shown seatedon an X-L loop sinuous: band 20 wherein the wire seat channel 346underlies the sixth linear segment 27d of the sinuous band 20. Theanchor segment 350, in turn, extends over and is supported by the fifthlinear segment 27a.

The cantilever section 341 of the arm member 331 includes an innersegment 355 bent upwardly from the plane of the attachment section 340,once again at an angle of approximately 30. The outer segment 356 isbent upwardly from the plane of the inner segment 355 at a correspondingangle of approximately 30. Contrary to the construction of the armmembers 31 and 131 hereinbefore described, however, the overall lengthof the cantilever section 341 is divided so that approximately 60percent of its length is made up by the inner segment 355 while 40percent is made up by the outer segment 356. In this arrangement, thelips 365367 are all formed on the inner segment 355, as illustrated.

The arm member 331 is provided with a retainer snap identical to thesnap 58 hereinbefore discussed. Accordingly, it is not described ingreater detail.

The cantilever arm member 331 functions in a manner substantiallyidentical to that of the arm members 31 and 131, as will be recognizedin the illustration of FIG. 7. It is distinct, however, in that theanchor segment 350 of the attachment section 340 overlies a sinuous bandlinear segment while the channel 346 underlies an adjacent linearsegment. The result obtained is the same, however.

The cantilever section 341 is distinct in that it incorporates an innersegment 355 which is approximately 50 percent longer than the outersegment 356. As a result, the edge support provided is slightly softerandless firm than provided by the edge spring arrangements 30 andhereinbefore discussed.

Turning now to FIGS. 8 and 9, a third form of the spring edgearrangement is seen generallyat 430. The spring edge arrangement 430includes a cantilever arm member 431 broadly similar to the arm members31 and 131, hereinbefore discussed, mounted on the sinuous spring band20 according to the present invention. Once again, the cantilever armmember 431 mounts a border wire 32 and a cardboard backing strip 33.

The arm member 431 is fabricated of steel strip and includes anattachment section 440 and.a cantilever section 441. In the attachmentsection 440, three wire seat channel means 445, 446, and 447 are definedabove the steel strip by tangs 448 formed upwardly from the free end ofthe strip:

In the spring edge arrangement430, the arm member 431 is shown seated ona super loop sinuous band wherein the wire seat channel 445 underliesthe fifth linear segment 27:: of the sinuous band. The anchor segment450 of the attachment section 440, in turn, extends over and issupported by the fourth linear segment 27f of the band 20.

The cantilever section 441 of the arm member 431 includes an outersegment 456 bent upwardly from the plane of the attachment section 440at an angle of approximately 30. The outer segment 456 is provided witha retainer snap 458 identical to the snap 358 hereinbefore discussed.

The cardboard element 33 is seated on the outer segment 456 of thecantilever section 441 in the manner illustrated. It is retained tightlyagainst each such segments 456 by compressible snap clips 460 which arepressed through the cardboard 33 and through apertures 461 in the outersegments 456. In insertion, the bow" legs 462 of the clip are compressedtoward each other and, after passing through the aperture 461, expand toretain the cardboard 33 against the segment 456 between the legs and theloop head 465 of the clip.

Turning to FIG. 10, an alternative form of the cardboard mountingarrangement illustrated in FIGS. 8 and 9 is seen at 480. In the mountingarrangement 480, the clip 460 is turned I80 so that its loop 465 extendstoward the free end of the arm segment 456. The loop 465 is then bentout slightly so as to form a mouth 481 into which the lower end of thecardboard element 33 is inserted. The cardboard element 33 seats in theclips 465 mounted on each of the arm segments 456 and retains thecardboard element 33 in this manner.

Referring now to FIG. 11, a fourth from of the spring edge arrangementis seen generally at 530. The spring edge arrangement 530 includes acantilever arm member 531 which is substantially identical to the armmember 431 hereinbefore discussed in relation to the third form of theinvention. The only distinction is, in 'fact, that the three wire seatchannel means 545, 546 and 547 are formed underneath the steel strip 531and displaced from the free end of the attachment section 540 of themember. Tangs 548 formed downwardly from the steel strip define thechannel means 545547. The outwardly extending anchor segment 550 of themember is adapted to underlie the linear segment 27c outwardly of thelinear segment 27f over which the innermost channel means 545 rests. Inoperation, the fourth form of the spring edge arrangement 530 is alsosubstantially identical to that of the spring edge arrangement 430hereinbefore discussed.

Referring now to FIG. 12, yet a fifth form of the spring edgearrangement is seen at 630. The spring edge arrangement 630 includes acantilever arm member 631 quite similar to the spring edge arrangement330 illustrated in FIG. 7, except that the member is fabricated ofspring steel wire rather than steel strip.

As illustrated, the member 631 is formed of wire in a generally U-shape,so as to define an attachment section 640 and a cantilever section 641.In the attachment section 640, three wire channel means 645, 646, and647 are formed upwardly into the wire legs 642 adjacent the free end ofthe wire legs 642. These channel means are formed by bending the wire toprovide tangs 648 extending upwardly from the wires in the mannerillustrated. g

A snap arrangement 658 similar to the snap 258 hereinbefore discussed isprovided at the closed end of the U-shaped wire cantilever section 641.A cardboard element 33 (not shown) rests on the cantilever section 641and is supported on its lower edge against upwardly extending lips 665formed in the wire.

A sixth form of the spring edge arrangement is illustrated generally at730 in FIG. 13. In the spring edge arrangement 730, the cantilever armmember 731 is again formed of wire in a manner similar to theconstruction of the spring edge arrangement 630 illustrated in FIG. 12.The spring edge arrangement 730 differs only in that wire channels 745,746 and 747 are formed downwardly from the wire legs 742 in the mannerillustrated, and displaced somewhat from the free terized in that:

ends of the attachment section 740. The spring edge arrangement 730mounts on the spring band 20 much in the manner of the spring edgearrangement 530 illustrated in FIG. 11.

While several embodiments described herein are at present considered tobe preferred, it is understood that various modifications andimprovements may be made therein, and it is intended to cover in theappended claims all such modifications and improvements as fall withinthe true spirit and scope of the invention.

What I desire to be claimed and secured by Letters Patent of the UnitedStates is:

' 1. A spring edge arrangement for a seat assembly or the like whereinthe seat assembly includes a sinuous spring band having a plurality ofgenerally linear segments connected by a plurality of generallysemicircular segments between a front rail and a back rail, comprising:

a. a cantilever arm member,

b. said arm member including an attachment section and a cantileversection,

c. said attachment section extending axially away from said cantileversection and having a series of transversely disposed wire seat meansformed on one side thereof in longitudinally spaced relationship,

d. one of said wire seat means receiving and seating on a linear segmentof thespring band,

e. said attachment section further including anchor means extending intoengagement with another linear segment of said band, i

. the portion of said attachment section between said one wire seatmeans and said anchor means extending through the band from above theband adjacent said cantilever section to below the band at the free endof said attachment section so that one of said one wire seat means andsaid anchor means seats over a corresponding linear (wire) segment andthe other of said one wire seat means and said anchor means seats undera corresponding linear (wire) segments,

g. said cantilever section having wire-receiving snap means fonned atits free end for receipt and resilient retention of border wire means,

h. said one wire seat means being selected for seating on said linearsegment of the spring band so that said resilient snap means and,accordingly, said border wire means is disposed in plumb linerelationship vertically over the front rail of the seat assembly,regardless of whether a regular sinuous, X-L sinuous, or super loopsinuous wire spring is employed.

2. The spring edge arrangement of claim 1 further characa. at least aportion of said cantilever section is bent upwardly at an angle from theplane of said attachment section.

3. The spring edge arrangement of claim 2 further characterized in that:

a. said angle is at least 30". i

4. The spring edge arrangement of claim 2 further characterized in that:I

a. said cantilever section includes an inner segment and an outersegment, 7

b. said inner segment being bent upwardly at a first angle of at least30 from the plane of said attachment section, and

c. said outer segment being bent upwardly at a second angle of at least30 from the plane of said inner segment.

5. The spring edge arrangement of claim 4 further characterized in that:

a. said wire-receiving snap means includes a wire-receiving mouthopening away from said attachment section.

6. The spring edge arrangement of claim 1 further characterized in that:

a. said wire-receiving snap means includes a wire-receiving mouth meansopening away from said attachment sections.

7. The spring edge arrangement of claim 1 further charac terized inthat:

a. said wire seat means are formed in said attachment section adjacentthe free end of said attachment section, opposite said cantileversection. 8. The spring edge arrangement of claim l further characterizedin that:

a. said cantilever arm member is formed from a flat strip of resilientmaterial, b. said snap means being formed from said strip by formingsaid material to define a mouth which resiliently opens in a directionaway from said attachment section to admit the border wire means. 9. Thespring edge arrangement of claim 8 further characterized by andincluding:

a. tang means formed in said mouth to lock said border wire in said snapmeans.

10. The spring edge arrangement of claim terized by and including:

a. backing member seat means formed in said cantilever section, and

b. a sheet backing member for stuffing material overlying saidcantilever section and supported by said seat means.

11. The spring arrangement of claim 10 further characterized in that:

a. said seat means comprises lip means formed upwardly from saidcantilever section and toward said snap means.

12. A spring edge arrangement for a seating assembly or the like whereinthe seat assembly includes a sinuous spring band having a plurality ofgenerally linear segments connected by a plurality of generallysemicircular segments between a front rail and a back rail, comprising:

a. a cantilever arm member,

b. said arm member including an attachment section and a cantileversection,

c. said attachment section extending axially away from said cantileversection and having a series of transversely disposed wire seat meansformed on one side thereof in longitudinally spaced relationship,

d. one of said wire seat means receiving and seating on a linear segmentof the spring band,

c. said attachment section further including anchor means 1 furthercharacextending into engageme'nt'with another line or segment of saidband,

f. at least a portion of said cantilever section being bent upwardly atan angle of at least 30 from the plane of the remainder of saidcantilever section,

g. said cantilever section having resilient snap means formed at itsfree end for receipt and retention of border wire means, 7

h. said wire seat means being selected for seating on said one linearsegment of the spring band so that said resilient snap means and,accordingly, said border wire means is disposed in plumb linerelationship vertically over the front rail of the seat assemblyregardless of whether a regular, sinuous, X-L sinuous, or super loopsinuous wire spring is employed.

13. The spring edge arrangement of claim 12 further characterized inthat:

a. said wire-receiving means snap comprise mouth means opening away fromsaid attachment section for receipt of the border wire means.

14. A cantilever arm member for an edge spring arrangement, comprising:

a. an attachment section and a cantilever section,

b. said attachment section extending axially away from said cantileversection and having a series of transversely disposed wire seat meansformed on one side thereof in longitudinally spaced relationship,

c. said attachment section further including anchor means extendingaxially away from one end of said series of wire seat means,

d. at least a portion of said cantilever section being bent upwardly atan angle of at least 30 from the plane of the remainder of saidcantilever section, e. said cantilever section having resilient snapmeans formed at its free end for receipt and retention of border wiremeans.

15. The cantilever arm member of claim 14 further charac-

2. The spring edge arrangement of claim 1 further characterized in that:a. at least a portion of said cantilever section is bent upwardly at anangle from the plane of said attachment section.
 3. The spring edgearrangement of claim 2 further characterized in that: a. said angle isat least 30*.
 4. The spring edge arrangement of claim 2 furthercharacterized in that: a. said cantilever section includes an innersegment and an outer segment, b. said inner segment being bent upwardlyat a first angle of at least 30* from the plane of said attachmentsection, and c. said outer segment being bent upwardly at a second angleof at least 30* from the plane of said inner segment.
 5. The spring edgearrangement of claim 4 further characterized in that: a. saidwire-receiving snap means includes a wire-receiving mouth opening awayfrom said attachment section.
 6. The spring edge arrangement of claim 1further characterized in that: a. said wire-receiving snap meansincludes a wire-receiving mouth means opening away from said attachmentsections.
 7. The spring edge arrangement of claim 1 furthercharacterized in that: a. said wire seat means are formed in saidattachment section adjacent the free end of said attachment section,opposite said cantilever section.
 8. The spring edge arrangement ofclaim 1 further characterized in that: a. said cantilever arm member isformed from a flat strip of resilient material, b. said snap means beingformed from said strip by forming said material to define a mouth whichresiliently opens in a direction away from said attachment section toadmit the border wire means.
 9. The spring edge arrangement of claim 8further characterized by and including: a. tang means formed in saidmouth to lock said border wire in said snap means.
 10. The spring edgearrangement of claim 1 further characterized by and including: a.backing member seat means formed in said cantilever section, and b. asheet backing member for stuffing material overlying said cantileversection and supported by said seat means.
 11. The spring arrangement ofclaim 10 further characterized in that: a. said seat means comprises lipmeans formed upwardly from said cantilever section and toward said snapmeans.
 12. A spring edge arrangement for a seating assembly or the likewherein the seat assembly includes a sinuous spring band having aplurality of generally linear segments connected by a plurality ofgenerally semicircular segments between a front rail and a back rail,comprising: a. a cantilever arm member, b. said arm member including anattachment section and a cantilever section, c. said attachment sectionextending axially away from said cantilever section and having a seriesof transversely disposed wire seat means formed on one side thereof inlongitudinally spaced relationship, d. one of said wire seat meansreceiving and seating on a linear segment of the spring band, e. saidattachment section further including anchor means extending intoengagement with another line or segment of said band, f. at least aportion of said cantilever section being bent upwardly at an angle of atleast 30* from the plane of the remainder of said cantilever section, g.said cantilever section having resilient snap means formed at its freeend for receipt and retention of border wire means, h. said wire seatmeans being selected for seating on said one linear segment of thespring band so that said resilient snap means and, accordingly, saidborder wire means is dIsposed in plumb line relationship vertically overthe front rail of the seat assembly regardless of whether a regular,sinuous, X-L sinuous, or super loop sinuous wire spring is employed. 13.The spring edge arrangement of claim 12 further characterized in that:a. said wire-receiving means snap comprise mouth means opening away fromsaid attachment section for receipt of the border wire means.
 14. Acantilever arm member for an edge spring arrangement, comprising: a. anattachment section and a cantilever section, b. said attachment sectionextending axially away from said cantilever section and having a seriesof transversely disposed wire seat means formed on one side thereof inlongitudinally spaced relationship, c. said attachment section furtherincluding anchor means extending axially away from one end of saidseries of wire seat means, d. at least a portion of said cantileversection being bent upwardly at an angle of at least 30* from the planeof the remainder of said cantilever section, e. said cantilever sectionhaving resilient snap means formed at its free end for receipt andretention of border wire means.
 15. The cantilever arm member of claim14 further characterized in that: a. said wire receiving snap meanscomprises mouth means opening away from said attachment section.